The Trump admin is weighing a policy of promoting stablecoin adoption. All you have to do is look at bond yields to see why.
The bank lobby is going to fight this because they fight every kind of progress that erodes their unjustified and underserved monopoly. When they do, it will reveal their true colors.
A stablecoin is always (always!) easier to acquire than a bank account. It's also more functional. Once more assets go on chain, it will be more interoperable too. All else equal, there will always be more demand for stables abroad than dollar accounts.
Banks arguing against such a policy are arguing for lower dollar demand, higher borrowing costs for the US government, higher mortgage rates, etc.